Rebound check with lubricating system



RH. HAssLz-:R REBOJND CHECK WITH LUBRICATING `SYSTEM Filed Dec. 18. 1925 :s sheets-sheet4 loct. 25,1927. 1546533;

R, H. HAssLER REBOUND CHECK vWITH LUBRICATING SYSTEM Filed Dec. 18, 1925 `5 sfj-sheet 2 hmmag 3 25, 1927. R. H. HASSLER REBOUND CHECK WITH LUBRICATING SYSTEM- Filed Deo. 18, 1925 s sheets-snm s von,

' Fig'. ifehewe e, eebeeedetejeii? e1'- eeetiuzer Patented Octfl2i5, 1927.`

i CORPORATIONvon` DELA-vmim,y e

frThe present iventioii relates?toiihpove-` `m`ets iu friction rebound clieekS -andv'ee 'e'ei'elljfeoteinplsite the provision of means asin au ailmite Sys- 'l'the joes are" forced ap art and f jlclef subsequent tetuetiofn.V il" Due to; th conical shape ofthe friction Llu'bri'eted zldesoibedfueboie'aud the Spring lhiehl theyzire urged together .I'et .ParisikeineT omitted; Figli 7; Shows; a.'

bstantia-lly eliminated, j

spring pivoted thereto; In the oorhb'iatio'n the' y,vehicle 'axle yand at its other tothe outer- MENTS, TOVHASSLEI; MANuAcT'UmNG oo., INC.;` oFl INpANAPoL1s,` HUMANA, `A` i Vas showh, th'evstalblizeif topeij isfttached'fto the'lrameand adapted, to be ofsellaltd-hjyy the actuating stfap 12 fstened atoiie en'd to n 2Li pfoi'ecting plete jM while the'e'trep' 1112' hee e j twor protectiveplates?15- and 16Iatits ehff v these latter andy the strapldeing slottedl So strap Within the drum and is 'an imp'itgint feeeure in exeieding au foreign meteer from f the Workingpirta3 i .The drum 13 is formed of 'two' euch other. A circular back.plteQOitsinto the ie'zu'i of the" drum "section ll-and has` i 'spacing 10055320 through 'Whiclipasses' a sorew 21.4 The screw 21 V.pzis'ses through fan v1permee inA frame' Ae'tlqermeet 1ol and ie :eeen-fed e 'by uut' 21". A projection vof the bck platepassesunder treme element 104i^n` oon-"fy tiret therewith to pretf'entlrotation of ethf b'jck y i ulidel" Straiiiz i thusf pretfeiited: .f f

adaptericap 30. 'This latter is held in place Y by a cap screw 31 extending through a central hole therein and engaging in a threaded axial bore of the boss and by studs 30 engaging in grooves 27 for preventing its f rotation, (Figs. 2, 3 and 6).

From the description thus far, it will be seen that,-upon relative rotation of thedrum 13 and back plate 20, a resistance will occur `due to friction between thrust member and thrust plate 28 or face 26, or both (member 25 being a fioatingmember), and between faces 19, 19"l and member 23.

The drum having been thus rotated, ason 4the vehicle rebound, means are necessary to return the drum to normal position, that is, .tQrewind the strap. For this Vpurpose .I l:provide `a spiral torsion spring v32 having suflicient force to return `the drum against the yconstant resistance of the friction elements., One bent end of this spring is retainedfin anaxially-extendmg slot of thespring adapter 30, see Fig. 6, while the other bent end is retained by a plate 33 riv- .eted'asat .33 to the vvertical flange of the drum. To prevent outward displacement of thev spring I provide .a'washer 34, held lin place by screw 31 and covering the inner `convolutions of vthe spring. A dished cover 35, having a peripheral bead 35 engaging in a peripheral groove of drum section 13,

` encloses the whole; *Drum13.upon assembling, is packedswith grease. i

Inf applyingthe described stabilizer the vtorsion spring is of' course adjusted to the correct strength, this being accomplished to a degree by means ofthe adapter 30 whose slot 30. may assume any one of four radial positions.` rIhe extent to which screw. 31 is tightenedalso regulates the force of the compression spring 29, althoughas a general rule this screw will be completed seated.

It will be seen that in aA divergent movey friction elements.

. The system `of lubrication is as follows: The boss 20. has a boring 3G into which is 'screwed agrease connection 37, Figs. 2 and inner face of themback plate 20, communi.r cates with the boring 36. The arrangement Y 9.` A boring 38, having its orifice on the of studs 24 .and holes 23 allows of two alf ternative positions of friction member 23v relative to the back plate and for thisreaY son member 23. is provided with two Ldia- I .metrically opposite boresv 39, either lone, of

which may register with.y bore 38, Figs. 2

land 3.v jThe bore 39, then, communicates .witha .chamber existingbetween the adjacent vertical faces. ofannuli 19 and,23',.and,

more specifically with an annular groove 40 onV the inner face of the latter. The outer edge of member 23 is providedl with a se-ly ries of notches 41, which, however, do not extend quite to the extreme circumference (see-particularly top of member- 23,Fig.. 2). The member 23 also has a series lof-transverse radial bores 42 communicating with an inner yperipheral groove 43 and an outer peripheral groove 44. AxiallyV extending bores 45 connect groove 4@ and bores 42.

Face 19 of annulus 19 has apertures 46, Figs. 2 and 6, on a line with groove 43 of member 23 and thrust member 25 has an annular groove 47 communicating with apertures.46,Fig. 2. Transverse axially extending bores 48, Figs.v2 and 4, in thrust member 25 connect groove 47 lwith an annular groove' 49 on theother working face of the 'ithrust member.

v By applying a grease gun to grease connection 37 grease is forced into the recess existing between the vertical adjacent vfaces of members 19 and 23, filling same. N otches -41 are lilled and likewise bores 45 and 42 and grooves 43 and 44. .l

c From groove 43 the grease passesthrough holes V46, eventually filling groove 47, bores 48, and groove 49. The grease pressure now A, backing up, the normal pressure between 'members 19 and 23 is relieved, that is, Vthe lforce of spring'29 lis counteractedby the pressure of thenlubricant. Thislatterpressure continuing, the l.friction elements? are forced apart as shownfin Fig. 8 and their.

contacting faces thoroughly reserviced with the grease., Due tolthe separation of these elements, drum 13 will be forced away from the back plate .20, this action being permitted, as will be readily understood, by the described structural relation of lthese arts. Extrusion of the grease from the vcasmg is vprevented by the felt washer 50, Fig. v2.

It l.will lthus be seen that all contacting faces are completely lubricated, particularly :the mainfriction faces,fby means of the'sysytem of ducts which I have provided. The

notches 41 retain a considerableamount of grease, andv there being'eight of them, as

illustrated, thev contacting face of 'member .-19 is completely re-lubricated at eaclieighth turn of thestabilizer casing.

. l Although I ,have described a specificadapi tation of my invention, it is yunderstoodthat I intend to Vbe limited vonly in' so far `as is prescribedin the followingclaims:v f Iclaim: .I y

. 1. In av stabilizer, relatively movable casving elements, cooperating friction' faces fixed on saidy casing elements, means yielda'bly urging said faces towards each other, and

means for. leading a lubricant underpressure;

to said faces`,f"saidy yieldable means t permit- '.ting a separation of said faces and afcorrelspending displacement of said casing-elements relative vto each other under the pressure of the lubricant. Y`

2. In ka stabilizer, va pair of annular tele-` scopic casing elements movable With respect to each other, Cooperating friction lfacesv said yieldable means permitting a separation of saidfaces anda corresponding separation of said casing elements relative to each other under'the pressureof the lubricant. i Y

p `3. In a stabilizer, a pair of annular telescopic'casmg elements removablysecured together, cooperating friction faces fixed on said casing elementsV and enclosed thereby,

pressure into theenelosure 'of said casing A nROBERT VHASSLER.

.and means for leading, a lubricant undery elements, whereby the cooperating friction 20 faces enclosed therewith Will be lubricated. 

